Support locking structure

Abstract

The utility model discloses a support locking structure, which relates to the technical field of supports and comprises a transverse frame, the left side and the right side of the transverse frame are fixedly connected with supporting legs respectively, and support locks are fixedly connected above the opposite surfaces of the two supporting legs. According to the scheme, through cooperation of the supporting leg body, the second threaded clamping rod and the extension rod limiting groove, when the supporting leg body needs to be fixed after being lengthened, the second threaded clamping rod is rotated firstly to relieve limiting of the threaded clamping rod rotating shaft, and then the threaded clamping rod rotating shaft can be rotated into the inner wall of the extension rod limiting groove; the threaded clamping rod rotating shaft is limited again, that is, the supporting leg extension rod is limited and fixed to one position, and the threaded clamping rod rotating shaft is limited through the second threaded clamping rod and cannot rotate easily, so that the problems that most of locking structures of existing support supporting legs only can be locked once, and locking is stable due to accidental collision, and the supporting legs cannot be locked easily are solved. Therefore, the problem of collapsing of the support is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of brackets, and in particular to a bracket locking structure. Background Art

[0002] "Stand", also translated as "scaffolding", was originally a term in the construction industry, specifically referring to the temporary support set up when building a building. This support will be removed as the building is completed. However, nowadays, stents are widely used and can be seen everywhere in work and life, such as camera tripods, heart stents used in the medical field, etc. The existing technology has the following problems:

[0003] The bracket is generally supported by supporting legs. However, when adjusting the length of most existing supporting legs, other tools are needed to limit the position after adjustment to ensure that they are fixed at the length adjusted by the user, and the distance between the two supporting legs cannot be adjusted. In addition, most of the locking structures of the existing bracket supporting legs can only be locked once, which may be accidentally touched, resulting in unstable locking and the risk of bracket collapse. Utility Model Content

[0004] The utility model provides a bracket locking structure to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A bracket locking structure comprises a cross frame, wherein the left and right sides of the cross frame are respectively fixedly connected with support legs, and the upper sides of the opposite surfaces of the two support legs are fixedly connected with bracket locks.

[0007] A further improvement of the technical solution of the utility model is that: the support leg includes a support leg body, the inner wall of the support leg body is movably connected to a support leg extension rod, the support leg body includes a support leg body shell, one side of the inner wall of the support leg body shell is provided with a plurality of support leg body slots, the top of the support leg body shell is provided with an extension rod extension slot, the support leg extension rod includes an extension rod body, the outer wall of the extension rod body is slidably connected to the inner wall of the support leg body shell, the top of the extension rod body extends to the outer wall of the support leg body shell through the extension rod extension slot and A second cross frame connecting block is fixedly connected, a plurality of extension rod limiting grooves are provided on the side of the extension rod body away from the supporting leg body slot, a spring telescopic rod is fixedly connected to the side of the extension rod body close to the supporting leg body slot, and extension rod sliding grooves are respectively provided on the upper and lower sides of the bottom of the side of the extension rod body close to the supporting leg body slot, the spring telescopic rod is fixedly connected to a clamping block on the side away from the extension rod body, the top and bottom of the clamping block are respectively rotatably connected to rotating rods, the two rotating rods are rotatably connected to sliders on the sides away from the clamping blocks, and the outer walls of the two sliders are slidably connected to the extension rod slide The inner wall of the groove, the opposite surfaces of the two sliders are fixedly connected with springs, and the ends of the two springs away from the sliders are fixedly connected to one side of the inner wall of the extension rod slide groove, the side of the block away from the extension rod body is a semicircular cross-section and is movably connected to the inner wall of one of the supporting leg body slots, the cross frame includes a cross frame body, the left side of the cross frame body is fixedly connected to a cross frame connecting block 1, the bottom of the inner wall of the cross frame body is provided with a cross frame slide groove, the top of the cross frame body is fixedly connected to a limited block, the inner wall of the limit block is fixedly connected to a limited block limit plate, and the bottom of the limit block is movably connected A cross frame clamping rod is connected, the top of the cross frame clamping rod is fixedly connected with a clamping rod spring, the bottom of the cross frame clamping rod passes through the inner wall of the cross frame body, the cross frame clamping rod passes through the outer wall of the bottom of the limit block and limit plate and is sleeved with a clamping rod spring, the inner wall of the cross frame body is slidably connected with a cross frame extension rod, the bottom left side of the cross frame extension rod is fixedly connected with a cross frame extension rod slider, the outer wall of the cross frame extension rod slider is slidably connected to the inner wall of the cross frame slide groove, a plurality of cross frame extension rod clamping grooves are opened on the top of the cross frame extension rod, and the bottom outer wall of the cross frame clamping rod is movably connected to the inner wall of one of the cross frame extension rod clamping grooves.

[0008] A further improvement of the technical solution of the utility model is that: the bracket lock includes a bracket bottom block, the top of the bracket bottom block is fixedly connected to a threaded clamping rod placement block, the inner wall of the threaded clamping rod placement block is threadedly connected to a threaded clamping rod, both ends of the threaded clamping rod pass through the inner wall of the threaded clamping rod placement block, one end of the threaded clamping rod is fixedly connected to the threaded clamping rod rotating shaft, and the side of the threaded clamping rod rotating shaft away from the threaded clamping rod is fixedly connected to the rotating shaft crank handle, and a plurality of rotating shaft clamping grooves are opened in an annular array on the outer wall of the threaded clamping rod rotating shaft, and one end of the threaded clamping rod away from the threaded clamping rod rotating shaft is threadedly connected to the inner wall of one of the extension rod limiting grooves, the top of the threaded clamping rod placement block is fixedly connected to an L-shaped placement frame, the top inner wall of the L-shaped placement frame is threadedly connected to a second threaded clamping rod, the top and bottom of the second threaded clamping rod respectively pass through the inner wall of the L-shaped placement frame, and the bottom of the second threaded clamping rod is movably connected to the inner wall of one of the rotating shaft clamping grooves.

[0009] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0010] The locking mechanism of the support frame is a kind of locking mechanism of the support frame, and the locking mechanism of the support frame is a kind of locking mechanism of the support frame, and the locking mechanism of the support frame is a kind of locking mechanism of the support frame, and the locking mechanism of the support frame is a kind of locking mechanism of the support frame, and the locking mechanism of the support frame is a kind of locking mechanism of the support frame.

[0011] 2. The utility model provides a bracket locking structure, which adopts the cooperation of the supporting leg main body, the second threaded clamping rod, and the extension rod limiting groove in this scheme. When the supporting leg main body needs to be fixed after the extension is completed, the second threaded clamping rod is first rotated to release the limitation on the threaded clamping rod rotating shaft, and then the threaded clamping rod rotating shaft can be rotated into the inner wall of the extension rod limiting groove, and the threaded clamping rod rotating shaft is re-limited, that is, the supporting leg extension rod is limited and fixed in a position, and the threaded clamping rod rotating shaft is limited by the second threaded clamping rod so that it cannot be easily rotated, which solves the problem that most of the locking structures of the existing bracket support legs can only be locked once, and may be accidentally touched, resulting in the risk of locking instability, thereby possibly causing the bracket to collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0013] Figure 2 This is a three-dimensional cross-sectional structural diagram of the support leg of the utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the supporting leg main body of the utility model;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of one side of the support leg extension rod of the utility model;

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the other side of the support leg extension rod of the utility model;

[0017] Figure 6 It is a schematic diagram of a three-dimensional cross-sectional structure of the horizontal frame of the utility model;

[0018] Figure 7 It is a schematic diagram of the three-dimensional structure of the bracket lock of the utility model.

[0019] In the figure: 1, cross frame; 11, cross frame body; 12, cross frame connecting block 1; 13, limit block; 14, cross frame slide; 15, limit block limit plate; 16, cross frame pull handle; 17, cross frame clamping rod; 18, clamping rod spring; 19, cross frame extension rod; 110, cross frame extension rod slider; 111, cross frame extension rod clamping slot; 2, support leg; 21, support leg body; 211, support leg body shell; 212, extension rod extension slot; 213, support leg body clamping slot; 22, support Leg extension rod; 221, extension rod body; 222, extension rod limit slot; 223, cross frame connecting block II; 224, extension rod slide slot; 225, spring telescopic rod; 226, clamping block; 227, rotating rod; 228, slider; 229, spring; 3, bracket lock; 31, bracket bottom block; 32, threaded clamping rod placement block; 33, threaded clamping rod; 34, threaded clamping rod rotating shaft; 35, rotating shaft clamping slot; 36, rotating shaft crank; 37, L-shaped placement rack; 38, second threaded clamping rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 As shown, the utility model provides a bracket locking structure, the left and right sides of the horizontal frame 1 are respectively fixedly connected with support legs 2, and the upper opposite surfaces of the two support legs 2 are fixedly connected with bracket locks 3;

[0022] The limit on the bracket lock 3 can be released by rotating the top of the bracket lock 3, and then the limit on the top of the supporting leg 2 can be released by rotating one side of the bracket lock 3. Then, the top of the supporting leg 2 can be pulled out of the inner wall of the supporting leg 2 by pulling the cross frame 1 to extend the length of the supporting leg 2. The limit on the inner wall of the cross frame 1 can be released by pulling the cross frame 1 on both sides to extend the length of the cross frame 1.

[0023] like Figure 2-6As shown, the utility model provides a bracket locking structure, the support leg 2 includes a support leg body 21, the inner wall of the support leg body 21 is movably connected with a support leg extension rod 22, the support leg body 21 includes a support leg body shell 211, a plurality of support leg body card slots 213 are provided on one side of the inner wall of the support leg body shell 211, an extension rod extension slot 212 is provided on the top of the support leg body shell 211, the support leg extension rod 22 includes an extension rod body 221, the outer wall of the extension rod body 221 is slidably connected to the inner wall of the support leg body shell 211, the top of the extension rod body 221 extends to the outer wall of the support leg body shell 211 through the extension rod extension slot 212 and is fixed A second cross-frame connecting block 223 is connected, a plurality of extension rod limiting grooves 222 are provided on the side of the extension rod body 221 away from the supporting leg body slot 213, a spring telescopic rod 225 is fixedly connected to the side of the extension rod body 221 close to the supporting leg body slot 213, and extension rod sliding grooves 224 are respectively provided on the upper and lower sides of the bottom of the extension rod body 221 close to the supporting leg body slot 213, and a clamping block 226 is fixedly connected to the side of the spring telescopic rod 225 away from the extension rod body 221, and the top and bottom of the clamping block 226 are respectively rotatably connected to rotating rods 227, and the two rotating rods 227 are rotatably connected to sliders 228 on the sides away from the clamping block 226, and the outer walls of the two sliders 228 are The two sliders 228 are fixedly connected to the inner wall of the extension rod slot 224, and the opposite surfaces of the two sliders 228 are fixedly connected with springs 229. The ends of the two springs 229 away from the sliders 228 are fixedly connected to one side of the inner wall of the extension rod slot 224. The side of the block 226 away from the extension rod body 221 is a semicircular cross-section and is movably connected to the inner wall of one of the supporting leg body slots 213. The cross frame 1 includes a cross frame body 11, and the left side of the cross frame body 11 is fixedly connected with a cross frame connecting block 12. The bottom of the inner wall of the cross frame body 11 is provided with a cross frame slot 14. The top of the cross frame body 11 is fixedly connected to a limiting block 13, and the inner wall of the limiting block 13 is fixedly connected to a limiting block limiting plate 15. The limiting block 1 3 is movably connected with a cross frame clamping rod 17 at the bottom, and a clamping rod spring 18 is fixedly connected to the top of the cross frame clamping rod 17. The bottom of the cross frame clamping rod 17 penetrates the inner wall of the cross frame body 11, and the cross frame clamping rod 17 penetrates to the outer wall of the bottom of the limit block limit plate 15 and is sleeved with a clamping rod spring 18. The inner wall of the cross frame body 11 is slidably connected with a cross frame extension rod 19, and the bottom left side of the cross frame extension rod 19 is fixedly connected with a cross frame extension rod slider 110, and the outer wall of the cross frame extension rod slider 110 is slidably connected to the inner wall of the cross frame slide 14. A plurality of cross frame extension rod clamping grooves 111 are opened on the top of the cross frame extension rod 19, and the bottom outer wall of the cross frame clamping rod 17 is movably connected to the inner wall of one of the cross frame extension rod clamping grooves 111;

[0024] When the length of the supporting leg 2 needs to be extended, the limit of the extension rod body 221 is first released through the extension rod limit groove 222, and the top of the extension rod body 221 is pulled, and the extension rod body 221 pulls the block 226 on the side of the inner wall of the supporting leg body shell 211, which is pressed by the supporting leg body slot 213 to press the spring telescopic rod 225 to one side, and the spring telescopic rod 225 and the top and bottom rotating rods 227 rotate to push the slider 228 to slide on the inner wall of the extension rod slide groove 224 to press the spring 229. When the block 226 falls into the inner wall of the supporting leg body slot 213 again, the spring 229 and the spring telescopic rod 2 25 Reset the block 226 into the inner wall of the supporting leg body slot 213, and will not move if not pulled by external force. When adjusting the lateral distance between the two supporting leg bodies 21, pull the cross frame handle 16 at the top of the cross frame body 11. The cross frame handle 16 pulls and drives the cross frame clamping rod 17 to pull out the inner wall of the cross frame extension rod slot 111. Then, the supporting leg body 21 can be pulled to drive the cross frame extension rod 19 to slide on the inner wall of the cross frame body 11. When the lateral position adjustment of the supporting leg body 21 is completed, release the cross frame handle 16, and the clamping rod spring 18 resets the cross frame clamping rod 17 to re-clamp into the inner wall of the cross frame extension rod slot 111 to limit the cross frame extension rod 19.

[0025] like Figure 7 As shown, the utility model provides a bracket locking structure, the bracket lock 3 includes a bracket bottom block 31, the top of the bracket bottom block 31 is fixedly connected to a threaded clamping rod placement block 32, the inner wall of the threaded clamping rod placement block 32 is threadedly connected to a threaded clamping rod 33, both ends of the threaded clamping rod 33 pass through the inner wall of the threaded clamping rod placement block 32, one end of the threaded clamping rod 33 is fixedly connected to a threaded clamping rod rotating shaft 34, the side of the threaded clamping rod rotating shaft 34 away from the threaded clamping rod 33 is fixedly connected to a rotating shaft crank 36, and the threaded clamping rod rotating shaft 34 is fixedly connected to the rotating shaft crank 36. The outer wall is provided with a plurality of rotating shaft slots 35 in an annular array, one end of the threaded clamping rod 33 away from the threaded clamping rod rotating shaft 34 is threadedly connected to the inner wall of one of the extension rod limiting slots 222, the top of the threaded clamping rod placement block 32 is fixedly connected to an L-shaped placement frame 37, the top inner wall of the L-shaped placement frame 37 is threadedly connected to a second threaded clamping rod 38, the top and bottom of the second threaded clamping rod 38 respectively penetrate the inner wall of the L-shaped placement frame 37, and the bottom of the second threaded clamping rod 38 is movably connected to the inner wall of one of the rotating shaft slots 35;

[0026] When the support leg body 21 needs to be fixed after the extension is completed, first rotate the second threaded clamp rod 38. The second threaded clamp rod 38 rotates the inner wall of the shaft slot 35 to release the limit on the threaded clamp rod shaft 34. Then, hold the shaft crank 36 to rotate the threaded clamp rod shaft 34. The rotation of the threaded clamp rod shaft 34 drives the threaded clamp rod 33 to rotate into the inner wall of the extension rod limiting slot 222. Then, rotate the second threaded clamp rod 38 again to rotate into the inner wall of the shaft slot 35 to limit the threaded clamp rod shaft 34, that is, limit the support leg extension rod 22 to a position, and limit the threaded clamp rod shaft 34 through the second threaded clamp rod 38 so that it cannot be easily rotated.

[0027] The working principle of the bracket locking structure is described in detail below.

[0028] like Figure 1-7 As shown, when the length of the supporting leg 2 needs to be extended, the limit of the extension rod body 221 is first released through the extension rod limit groove 222, and the top of the extension rod body 221 is pulled, and the extension rod body 221 pulls the extension rod body 221. The block 226 on the side of the inner wall of the supporting leg body shell 211 is pushed by the support leg body slot 213 to press the spring telescopic rod 225 to one side, and the spring telescopic rod 225 and the top and bottom rotating rods 227 rotate to push the slider 228 The inner wall of the extension rod slot 224 slides and presses the spring 229. When the block 226 falls into the inner wall of the supporting leg body slot 213 again, the spring 229 and the spring telescopic rod 225 reset the block 226 into the inner wall of the supporting leg body slot 213, and will not move if there is no external force. When adjusting the lateral distance between the two supporting leg bodies 21, the horizontal frame handle 16 at the top of the horizontal frame body 11 is pulled, and the horizontal frame handle 16 pulls the horizontal frame clamping rod 17 to pull out the horizontal frame. The inner wall of the frame extension rod slot 111 can then be pulled to drive the cross frame extension rod 19 to slide on the inner wall of the cross frame body 11. When the lateral position adjustment of the support leg body 21 is completed, the cross frame handle 16 is released, and the clamping rod spring 18 resets the cross frame clamping rod 17 and re-inserts it into the inner wall of the cross frame extension rod slot 111 to limit the cross frame extension rod 19. When the support leg body 21 needs to be fixed after the extension is completed, first rotate the second threaded clamping rod 38, and the second threaded clamping rod 38 rotates the rotating shaft slot The inner wall of 35 releases the limit on the threaded clamping rod shaft 34, and the shaft crank handle 36 can be held to rotate the threaded clamping rod shaft 34. The rotation of the threaded clamping rod shaft 34 drives the threaded clamping rod 33 to rotate into the inner wall of the extension rod limiting groove 222, and then the second threaded clamping rod 38 is rotated again to rotate into the inner wall of the shaft clamping groove 35 to limit the threaded clamping rod shaft 34, that is, the support leg extension rod 22 is limited and fixed in a position, and the threaded clamping rod shaft 34 is limited by the second threaded clamping rod 38 so that it cannot be easily rotated.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bracket locking structure, comprising a horizontal frame (1), characterized in that: The left and right sides of the cross frame (1) are respectively fixedly connected with support legs (2), and the upper sides of the opposite surfaces of the two support legs (2) are fixedly connected with bracket locks (3). The cross frame (1) comprises a cross frame body (11), and the left side of the cross frame body (11) is fixedly connected with a cross frame connecting block (12), and the bottom of the inner wall of the cross frame body (11) is provided with a cross frame sliding groove (14), and the top of the cross frame body (11) is fixedly connected with a limit block ( 13), the inner wall of the limit block (13) is fixedly connected to the limit block limit plate (15), the bottom of the limit block (13) is movably connected to a cross frame clamping rod (17), the top of the cross frame clamping rod (17) is fixedly connected to a clamping rod spring (18), the bottom of the cross frame clamping rod (17) penetrates the inner wall of the cross frame body (11), and the cross frame clamping rod (17) penetrates to the outer wall of the bottom of the limit block limit plate (15) and is sleeved with a clamping rod spring (18).

2. A bracket locking structure according to claim 1, characterized in that: The support leg (2) comprises a support leg main body (21), and the inner wall of the support leg main body (21) is movably connected to a support leg extension rod (22).

3. A bracket locking structure according to claim 2, characterized in that: The supporting leg body (21) comprises a supporting leg body shell (211), a plurality of supporting leg body slots (213) are provided on one side of the inner wall of the supporting leg body shell (211), and an extension rod extension slot (212) is provided on the top of the supporting leg body shell (211).

4. A bracket locking structure according to claim 2, characterized in that: The support leg extension rod (22) comprises an extension rod body (221), the outer wall of the extension rod body (221) is slidably connected to the inner wall of the support leg body shell (211), the top of the extension rod body (221) extends to the outer wall of the support leg body shell (211) through the extension rod extension groove (212) and is fixedly connected to a cross frame connecting block 2 (223), and a plurality of extension rod limiting grooves (222) are provided on a side of the extension rod body (221) away from the support leg body slot (213).

5. A bracket locking structure according to claim 4, characterized in that: A spring telescopic rod (225) is fixedly connected to one side of the extension rod body (221) close to the supporting leg body slot (213); an extension rod sliding groove (224) is respectively provided at the upper and lower sides of the bottom of one side of the extension rod body (221) close to the supporting leg body slot (213); a clamping block (226) is fixedly connected to one side of the spring telescopic rod (225) away from the extension rod body (221); a rotating rod (227) is rotatably connected to the top and bottom of the clamping block (226); and the two rotating rods (227) are away from the clamping block (226). 26) are rotatably connected to one side of the two sliders (228), the outer walls of the two sliders (228) are slidably connected to the inner wall of the extension rod slot (224), the opposite surfaces of the two sliders (228) are fixedly connected to springs (229), the ends of the two springs (229) away from the sliders (228) are fixedly connected to one side of the inner wall of the extension rod slot (224), and the side of the block (226) away from the extension rod body (221) is a semicircular cross-section and is movably connected to the inner wall of one of the support leg body slots (213).

6. The bracket locking structure according to claim 1, characterized in that: The inner wall of the cross frame body (11) is slidably connected to a cross frame extension rod (19), the bottom left side of the cross frame extension rod (19) is fixedly connected to a cross frame extension rod slider (110), the outer wall of the cross frame extension rod slider (110) is slidably connected to the inner wall of the cross frame slide groove (14), the top of the cross frame extension rod (19) is provided with a plurality of cross frame extension rod clamping grooves (111), and the bottom outer wall of the cross frame clamping rod (17) is movably connected to the inner wall of one of the cross frame extension rod clamping grooves (111).

7. The bracket locking structure according to claim 1, characterized in that: The bracket lock (3) comprises a bracket bottom block (31), the top of the bracket bottom block (31) is fixedly connected with a threaded clamping rod placement block (32), the inner wall of the threaded clamping rod placement block (32) is threadedly connected with a threaded clamping rod (33), both ends of the threaded clamping rod (33) pass through the inner wall of the threaded clamping rod placement block (32), one end of the threaded clamping rod (33) is fixedly connected with a threaded clamping rod rotating shaft (34), the side of the threaded clamping rod rotating shaft (34) away from the threaded clamping rod (33) is fixedly connected with a rotating shaft crank (36), and the outer wall of the threaded clamping rod rotating shaft (34) is annularly arrayed A plurality of rotating shaft slots (35) are provided, one end of the threaded clamp rod (33) away from the threaded clamp rod rotating shaft (34) is threadedly connected to the inner wall of one of the extension rod limiting slots (222), the top of the threaded clamp rod placement block (32) is fixedly connected to an L-shaped placement frame (37), the top inner wall of the L-shaped placement frame (37) is threadedly connected to a second threaded clamp rod (38), the top and bottom of the second threaded clamp rod (38) respectively penetrate the inner wall of the L-shaped placement frame (37), and the bottom of the second threaded clamp rod (38) is movably connected to the inner wall of one of the rotating shaft slots (35).

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